Asked by Anonymous
Let f(x)=(x-2)/((sqrtx)-(sqrt2)), if x does NOT equal 2 and f(x)=k if x=2.
Then f is continuous everywhere in its domain if k=
Then f is continuous everywhere in its domain if k=
Answers
Answered by
Steve
(x-2)/(√x-√2)
= [(√x-√2)(√x+√2)]/(√x-√2)
= √x+√2
for all x≠2
So, if k=2√2 f is continuous everywhere.
= [(√x-√2)(√x+√2)]/(√x-√2)
= √x+√2
for all x≠2
So, if k=2√2 f is continuous everywhere.
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